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Finding the Fourth Proportional to 228,218.66, 314,835.72 and 147,672.16

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Solution

The fourth proportional to 228,218.66, 314,835.72 and 147,672.16 is: 203,718.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,218.66 : 314,835.72 = 147,672.16 : x
  2. Step 2: Convert to fraction form
    228,218.66/314,835.72 = 147,672.16/x
  3. Step 3: Cross multiply
    228,218.66x = 314,835.72 × 147,672.16
  4. Step 4: Simplify right side
    228,218.66x = 46,492,470,817.56
  5. Step 5: Solve for x
    x = 46,492,470,817.56/228,218.66
  6. Step 6: Final answer
    x = 203,718.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.